Não informado. (1976). Commerce America. U.S. Department of Commerce.
Lua i Stíl Chicago (17ú heag.)Não informado. Commerce America. Washington: U.S. Department of Commerce, 1976.
Lua MLA (8ú heag.)Não informado. Commerce America. U.S. Department of Commerce, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.